During the 11th inning of Thursday's game between the Nationals and Diamondbacks at Nationals Park, one of the light towers in right field caught fire:
The sections below the light tower were evacuated and no injuries were reported. In a statement, the Nationals chalked the blaze up to a "minor technical malfunction" and said their "facilities team is currently looking into what may have caused the problem."
Can't say I ever remember seeing part of a ballpark on fire, certainly not during a game. As you can see in the video, the fans were checking out the fire while the players just kept chugging along, probably eager to get the extra-innings game over on the get-away day.